diff --git a/.gitignore b/.gitignore
index c295055..a043779 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,7 +3,6 @@
 .settings
 .buildpath
 test/output/
-examples/example-options.json
 .idea
 /composer.phar
 test.php
diff --git a/composer.json b/composer.json
index 24f6f10..20ee16d 100644
--- a/composer.json
+++ b/composer.json
@@ -9,8 +9,6 @@
   ],
   "minimum-stability": "stable",
   "scripts": {
-    "post-install-cmd": "./post-install.sh",
-    "post-update-cmd": "./post-install.sh",
     "test": "./vendor/bin/phpunit",
     "fix-style": "php-cs-fixer fix ."
   },
diff --git a/examples/bootstrap.php b/examples/bootstrap.php
index 1110ed3..688d53e 100644
--- a/examples/bootstrap.php
+++ b/examples/bootstrap.php
@@ -1,7 +1,3 @@
 <?php
 
 require_once dirname(__FILE__).'/../vendor/autoload.php';
-
-//pull in library options
-$optionsFile = file_get_contents(dirname(__FILE__).'/example-options.json');
-$options = json_decode($optionsFile, true);
diff --git a/examples/message-events/get_message_events.php b/examples/message-events/get_message_events.php
index e027df1..0a3c4ac 100644
--- a/examples/message-events/get_message_events.php
+++ b/examples/message-events/get_message_events.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY",]);
 
 $promise = $sparky->request('GET', 'message-events', [
     'campaign_ids' => 'CAMPAIGN_ID',
diff --git a/examples/templates/create_template.php b/examples/templates/create_template.php
index 826b076..ada8ff1 100644
--- a/examples/templates/create_template.php
+++ b/examples/templates/create_template.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->request('POST', 'templates', [
   'name' => 'PHP example template',
diff --git a/examples/templates/delete_template.php b/examples/templates/delete_template.php
index 0985c5f..906a308 100644
--- a/examples/templates/delete_template.php
+++ b/examples/templates/delete_template.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->request('DELETE', 'templates/TEMPLATE_ID');
 
diff --git a/examples/templates/get_all_templates.php b/examples/templates/get_all_templates.php
index 25e222c..289ccb8 100644
--- a/examples/templates/get_all_templates.php
+++ b/examples/templates/get_all_templates.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->request('GET', 'templates');
 
diff --git a/examples/templates/get_template.php b/examples/templates/get_template.php
index 9ae977e..1cd4d42 100644
--- a/examples/templates/get_template.php
+++ b/examples/templates/get_template.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->request('GET', 'templates/TEMPLATE_ID?draft=true');
 
diff --git a/examples/templates/preview_template.php b/examples/templates/preview_template.php
index 0f0a1db..60f38c1 100644
--- a/examples/templates/preview_template.php
+++ b/examples/templates/preview_template.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->request('POST', 'templates/TEMPLATE_ID/preview?draft=true', [
     'substitution_data' => [
diff --git a/examples/templates/update_template.php b/examples/templates/update_template.php
index 4da186c..bc6ed53 100644
--- a/examples/templates/update_template.php
+++ b/examples/templates/update_template.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->request('PUT', 'templates/TEMPLATE_ID', [
     'options' => [
diff --git a/examples/transmissions/create_transmission.php b/examples/transmissions/create_transmission.php
index a7a1914..a46edd2 100644
--- a/examples/transmissions/create_transmission.php
+++ b/examples/transmissions/create_transmission.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->transmissions->post([
     'content' => [
diff --git a/examples/transmissions/create_transmission_with_attachment.php b/examples/transmissions/create_transmission_with_attachment.php
new file mode 100644
index 0000000..74c1822
--- /dev/null
+++ b/examples/transmissions/create_transmission_with_attachment.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace Examples\Transmissions;
+
+require dirname(__FILE__).'/../bootstrap.php';
+
+use SparkPost\SparkPost;
+use GuzzleHttp\Client;
+use Http\Adapter\Guzzle6\Client as GuzzleAdapter;
+
+$httpClient = new GuzzleAdapter(new Client());
+
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
+
+$filePath = dirname(__FILE__).'/';
+$fileName = 'sparkpost.png';
+$fileType = mime_content_type($filePath.$fileName);
+$fileData = base64_encode(file_get_contents($filePath.$fileName));
+
+$promise = $sparky->transmissions->post([
+    'content' => [
+        'from' => [
+            'name' => 'SparkPost Team',
+            'email' => 'from@sparkpostbox.com',
+        ],
+        'subject' => 'Mailing With Attachment From PHP',
+        'html' => '<html><body><h1>Congratulations, {{name}}!</h1><p>You just sent an email with an attachment!</p></body></html>',
+        'text' => 'Congratulations, {{name}}! You just sent an email with an attachment',
+        'attachments' => [
+            [
+                'name' => $fileName,
+                'type' => $fileType,
+                'data' => $fileData,
+            ],
+        ],
+    ],
+    'substitution_data' => ['name' => 'YOUR_FIRST_NAME'],
+    'recipients' => [
+        [
+            'address' => [
+                'name' => 'YOUR_NAME',
+                'email' => 'YOUR_EMAIL',
+            ],
+        ],
+    ],
+]);
+
+try {
+    $response = $promise->wait();
+    echo $response->getStatusCode()."\n";
+    print_r($response->getBody())."\n";
+} catch (\Exception $e) {
+    echo $e->getCode()."\n";
+    echo $e->getMessage()."\n";
+}
diff --git a/examples/transmissions/create_transmission_with_cc_and_bcc.php b/examples/transmissions/create_transmission_with_cc_and_bcc.php
index 5e1bf23..de65b29 100644
--- a/examples/transmissions/create_transmission_with_cc_and_bcc.php
+++ b/examples/transmissions/create_transmission_with_cc_and_bcc.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->transmissions->post([
     'content' => [
diff --git a/examples/transmissions/create_transmission_with_recipient_list.php b/examples/transmissions/create_transmission_with_recipient_list.php
index e658b0d..b8fa75f 100644
--- a/examples/transmissions/create_transmission_with_recipient_list.php
+++ b/examples/transmissions/create_transmission_with_recipient_list.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->transmissions->post([
     'content' => [
diff --git a/examples/transmissions/create_transmission_with_template.php b/examples/transmissions/create_transmission_with_template.php
index e8f3fb6..7bb9020 100644
--- a/examples/transmissions/create_transmission_with_template.php
+++ b/examples/transmissions/create_transmission_with_template.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->transmissions->post([
     'content' => ['template_id' => 'TEMPLATE_ID'],
diff --git a/examples/transmissions/delete_transmission.php b/examples/transmissions/delete_transmission.php
index ad0cc64..f62766c 100644
--- a/examples/transmissions/delete_transmission.php
+++ b/examples/transmissions/delete_transmission.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->transmissions->delete('TRANSMISSION_ID');
 
diff --git a/examples/transmissions/get_all_transmissions.php b/examples/transmissions/get_all_transmissions.php
index 0b4eb7f..37646ba 100644
--- a/examples/transmissions/get_all_transmissions.php
+++ b/examples/transmissions/get_all_transmissions.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->transmissions->get();
 
diff --git a/examples/transmissions/get_transmission.php b/examples/transmissions/get_transmission.php
index b149107..f62078f 100644
--- a/examples/transmissions/get_transmission.php
+++ b/examples/transmissions/get_transmission.php
@@ -10,10 +10,7 @@
 
 $httpClient = new GuzzleAdapter(new Client());
 
-/*
- * configure options in example-options.json
- */
-$sparky = new SparkPost($httpClient, $options);
+$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);
 
 $promise = $sparky->transmissions->get('TRANSMISSION_ID');
 
diff --git a/examples/transmissions/sparkpost.png b/examples/transmissions/sparkpost.png
new file mode 100644
index 0000000..140a146
Binary files /dev/null and b/examples/transmissions/sparkpost.png differ
diff --git a/post-install.sh b/post-install.sh
deleted file mode 100755
index 0326a42..0000000
--- a/post-install.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-if [ ! -f 'examples/example-options.json' ]; then echo '{\n\t"key":"YOUR_API_KEY"\n}' >> examples/example-options.json; fi